S IAstVisitor <T, S> .VisitQuerySelectClause(QuerySelectClause querySelectClause, T data)
{
var handler = QuerySelectClauseVisited;
if (handler != null)
{
handler(querySelectClause, data);
}
return(VisitChildren(querySelectClause, data));
}
public override AstNode VisitQuerySelectClause(QuerySelectClause querySelectClause)
{
if (eatSelect)
{
eatSelect = false;
return(currentResult);
}
else if (((QueryExpression)querySelectClause.Parent).Clauses.Count > 2 && IsSingleRangeVariable(querySelectClause.Expression))
{
// A simple query that ends with a trivial select should be removed.
return(currentResult);
}
var param = CreateParameterForCurrentRangeVariable();
var lambda = CreateLambda(new[] { param }, VisitNested(querySelectClause.Expression, param));
return(currentResult.Invoke("Select", lambda));
}
void IAstVisitor.VisitQuerySelectClause(QuerySelectClause querySelectClause)
{
Visit(EnterQuerySelectClause, LeaveQuerySelectClause, querySelectClause);
}
protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
{
QuerySelectClause o = other as QuerySelectClause;
return(o != null && this.Expression.DoMatch(o.Expression, match));
}